Neon Roberts is "as sharp as ever" after his cancer surgery, which took place despite his mother's objections following a court ruling, reports the Daily Mail.

Neon Roberts has undergone surgery against the wishes of his mother following a judge's ruling. Credit: Handout

The seven-year-old's mother Sally Roberts wanted any operation on her son Neon delayed because she wanted opinions from doctors in Russia, Germany and the US but the Judge who assessed the evidence said the gains of going ahead with surgery outweighed the risks.

The Daily Mail reports that Neon woke up following the seven-hour procedure telling nurses: "I can still talk, you know."

Today Neon's mother will renew her fight at the High Court today over planned radiotherapy for her son. Ms Roberts claims the therapy will cause Neon long-term harm.

A mother who disappeared with her young son to stop him being treated for cancer says she had no choice.

37-year-old Sally Roberts disappeared from her home in Tiverton with seven year old Neon because she was worried that radiotherapy would be damaging.

She says she needs more evidence that treatment is necessary and other options need to be explored. The case was heard at the High Court and a judge will make a decision next week. Sally spoke exclusively to Daybreak this morning. This is the full interview.